楕円振動を利用した分別搬送:　垂直振動が跳躍限界以下の場合

摘要

工場の自動組立ラインでは，規定の形状や姿勢の部rn品だけを選別して供給する技術が必要とされている．rnそこで，部品の供給と同時に選別·整列が可能な振動rn搬送機械が部品の自動供給に多用されている．振動をrn利用した分別方法として，搬送面に突起や切欠きなどrnの機械的な構造を設けて整列させるツーリング法がrnある．しかし，この方法では形状が類似した部品の分rn別が難しい．また，帯電性や磁性，比重など材料固有rnの性質を利用して分別する方法も提案されているrnが，材質が同じ部品に対しては適用できない．%This paper describes the simultaneous separation and transportation of works with various coefficients of friction by using elliptical vibration. In transportation by elliptical vibration, works move right or left, or stop, depending on the phase difference between horizontal and vertical vibration. As transportation characteristics are changed by the coefficients of friction, works with various coefficients of friction can be simultaneously separated and transported by adequately controlling the phase difference. Experimental results show that the works of same shapes and sizes can be separated according to the material of those, and plain washers and electronic parts also can be separated according to the different shape of face and reverse side. We also examined optimal driving condition for separation. Speed of separation and transportation was fastest on condition that vertical amplitude was the jump limit. The dispersions of transportation characteristics were reduced on condition that horizontal amplitude was large.